SCN26562 Datasheet, PDF (5/17 Pages) NXP Semiconductors – Dual universal serial communications controller DUSCC

Philips Semiconductors
Dual universal serial communications controller (DUSCC)
Product specification
SCN26562
PIN DESCRIPTION
MNEMONIC
A1–A6
D0–D7
RDN
WRN
CEN
RDYN
IRQN
IACKN
X1/CLK
X2
RESETN
RxDA, RxDB
TxDA, TxDB
RTxCA,
RTxCB
TRxCA,
TRxCB
CTSA/BN,
LCA/BN
DCDA/BN,
SYNIA/BN
RTxDRQA/BN,
GPO1A/BN
TxDRQA/BN,
GPO2A/BN,
RTSA/BN
RTxDAKA/BN,
GPI1A/BN
TxDAKA/BN,
GPI2A/BN
EOPN
RTSA/BN,
SYNOUTA/BN
V_CC
GND
PIN NO.
DIP PLCC
4–2, 4–2,
47–45 51–49
31–28, 33–30,
21–18 23–20
22
24
26
28
25
27
7
8
6
6
1
1
43
47
42
46
23
25
37, 12 40, 14
36, 13 39, 15
39, 10 43, 11
40, 9 44, 10
32, 17 35, 19
38, 11 42, 12
34, 15 37, 17
33, 16 36, 18
44, 5 48, 5
35, 14 38, 16
27
41, 8
29
45, 9
48
52
24
26
TYPE
NAME AND FUNCTION
I
Address lines.
I/O Bidirectional data bus.
I
Read strobe.
I
Write strobe.
I
Chip select.
O Ready.
O Interrupt request.
I
Interrupt acknowledge.
I
Crystal 1 or external clock.
I
Crystal 2.
I
Master reset.
I
Channel A (B) receiver serial data.
O Channel A (B) transmitter serial data.
I/O Channel A (B) receiver/transmitter clock.
I/O Channel A (B) transmitter/receiver clock.
I/O Channel A (B) clear-to-send input or loop control output.
I
Channel A (B) data carrier detected or external sync.
O Channel A (B) receiver/transmitter DMA service request or general purpose output.
O Channel A (B) transmitter DMA service request, general purpose output or request-to-send.
I
Channel A (B) receiver/transmitter DMA acknowledge or general purpose input 1.
I
Channel A (B) transmitter DMA acknowledge or general purpose input 2.
I/O DMA transfer complete.
O Channel A (B) request-to-send or Sync detect.
I
Power input.
I
Signal and power ground.
1995 May 1
5